Ezra w



(No Model.)

B. W. WRIGHT.

SPARK AND SMOKE ARRESTER.

No. 251,492. Patented Dec.'2'7, 1881.

Irmmfor d wij W Umrnn STATES PATENT OFFICE.

EZRA w. WRIGHT, OF MILFORD, NEW YORK.

SPARK AND SMOKE ARRESTER.

SPECIFICATION forming part of Letters Patent No. 251,492, dated December 27, 1881.

Application filed June 25, 1881. (No model.)

To all whom it may concern:

Be it known that I, EZRA \V. WRIGHT, of Milford, in the county of Otsego, in the State of New York, have invented certain Improvements in Spark and Smoke Arresters for Furnaces, of which the following is a specification.

The object of this invention is to provide against the escape of ignited sparks and dense volumes of smoke from smoke-stacks, &c., in order to provide not only against the danger of fire to surrounding objects, but also to provide against the contamination of the atmosphere.

To this end my said invention comprises a novel combination, with a smokestack, of a lateral outlet-pipe and afan-blower so arranged as to provide a draft sufficient to carry the smoke particles, sparks, 830., laterally away from the smoke-stack, and at the same time permit the more ambient portions of the gaseous products of combustion escapingfrom the furnace to pass out in the usual manner from the top or open throat of the stack.

My said invention also comprises a certain other novel combination of parts, whereby the first-named or more essential feature of my said invention may be most effectually carried into practice.

Figure 1 is a side view and partial sectional view of an apparatus embraced in my said invention. Fig. 2 is a front view of the same and Fig. 3 is a side view and partial section, representing a modification thereof.

A is a smOkestack, connecting at its lower end in any usual or suitable manner with a furnace of any usual or suitable constructionas, for example, the furnace of a steam-boiler, B. As thisjuuction of a smoke-stack with the fines, and consequently with the furnace of a steam-boiler, or with a furnace of any other construction, is well understood,the same needs no specific description here.

In one side of the smoke-stack A, I form an opening, a, with which I connecta pipe, 0, the opposite end of which connects with the usual inlet opening of a fan-blower, D, the outletopening of which is provided with a pipe, E,

leading to the place or repository at which it is desired to deposit the condensed matter of the smoke, the extinguished sparks, 8m. This repository is composed of a chest or chamber, F, which may be provided with a suitable top,

b, and with a goose-neck overflow-pipe, c. The chamber F is filled with water, and as the extinguished sparks, comminuted cinder, ash, and condensed materials from the smoke are carried into the said chamber the water cro wded out from the latter flows through the outlet goose-neck pipe 0.

A rotatory movementis given to the' moving parts of the fan-blower D by any usual or suitable means. Thus, for example, when the smoke-stack is that of a stationary furnace, the fan-blower D may receive its motion by means of an ordinary belt and pulley from any suitable shaft.

When my said invention is applied to the furnace of a locomotive-boiler the fan-blower 'should, of course, berun by a belt and pulley from one of the axles of the locomotive. As a suitable arrangement of belts and pulleys for this purpose requires only mere mechanical judgment and ordinary skill, the same need not be here delineated or described.

In the operation of the invention the 'usual draft through the smoke-stack A tends to carry the'volu'me of smoke, the finely-divided cinder and ash, and the ignited sparks to theopen outer end or throat of the smoke-stack, thence to throw the same into the atmosphere, were it not that the action of the fan-blower D creates a lateral, and to a certain extent a counter, current away from the interior of the smoke-stack A, which is sufficient to divert the material just mentioned from the upward course of the gaseous products of combustion from the furnace, the volume of gaseous matter thus diverted being sufficient to carry with it the cinder, ash, smoke, and sparks, and thereby preventing the escape of the same from the open upper end or throat of the smokestack A, which would otherwise occur. This material thus carried through the pipe 0 and the fan-blower D is ejected from the latter through the pipe E, and, passing into the water contained in the chamber F, is cooled and extinguished, and sinks by its own gravity to the bottom of the volume of water in the said chamber F, the water rendered surplus by the additional matter thus introduced into the said chamber flowing off through the goose outletpipe 0, so that by the means described not only is the escape of ignited sparks, finely-divided cinder and ash, and the line particles of carbe provided with a safety-valve, g.

bonaceous matter included in the smoke prevented from escaping into the outer atmosphere to contaminate the same or to cause the ignition of surrounding objects, but all such material is collected, so as to be available for any use to which it may be capable of application in the arts. v

When the invention is applied in connection with the furnace of a steam-boiler the chamber F, instead of being filled with water, as indicated in Fig. i, may be placed in communication with the steam-space of the boiler by means of a pipe, 0, extending from the boiler to the said chamber, and provided with a suitable stopcock, f, to regulate the inflow of steam from the boiler to the chamber. The latter, when thus supplied with steam in this manner, should The steam in this modification of the invention serves the same purpose of condensing the smoke particles, &c., and extinguishing the sparks as is done by the water when the apparatus is constructed as represented in Fig. 1.

When waste or exhaust steam is available, either from a boiler connected with the furnace to which the invention is applied or from any other source of supply, such Waste or exhaust steam may be employed in lieu of live steam direct from the boiler, and will, of course, be found more economical, and in many cases may be more conveniently applied. In those cases, moreover, where the locomotive furnace and boiler is provided with a water-tank carried upon the same frame-work as the boiler, the Water-tank may be connected with the chamber F by means of a pipe having an appropriate stop-cock, so that the chamber will be kept supplied with the requisite quantity of water direct from the tank. In those cases where steam is used in the chamber F, as hereinbefore explained, the chamber, instead of being perfectly tight and provided with a safetyvalve, g, may have an opening in its bottom, either with or without a tube extending downward from said opening, so that when the particles of smoke, cinder, ash, sparks, 850., have been acted upon by the steam, they may pass out by their own gravity and be deposited along the center of the track. mentioned case, however, it is necessary that the volume of steam admitted to the chamber F be carefully regulated, in order to prevent undue waste of steam and unnecessary lowering of pressure in the boiler when the steam is taken direct from the latter.

\Vhat I claim as my invention is- 1. The combination, with a smoke-stack, A, of a t'airblower, D, having its inlet connected with one side of the said stack by means of a branch pipe, 0, whereby the particles of smoke, dust, cinder, sparks, &c., are withdrawn from the smoke-stack and prevented from reaching the outer open end or throat thereof, while the greater portion of the gaseous matter is allowed to escape, all substantially as and for the purpose herein set forth.

2. The combination ofa condensing and cooling-chamber, F, the fan-blower D, the smokestack A, and the branch pipe 0, providing communication between the side of the smokestack and the inlet of the fan-blower D, all substantially as and for the purpose herein set forth.

EZRA Wf WRIGHT.

Witnesses THOMAS E. UROSSMAN, .tonr. W. MATTHEWS.

In this last 

